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Finding the Third Proportional to 638,961,972 and 913,093,278

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Solution

The third proportional to 638,961,972 and 913,093,278 is: 1,304,834,044.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,961,972 : 913,093,278 = 913,093,278 : x
  2. Step 2: Convert to fraction form
    638,961,972/913,093,278 = 913,093,278/x
  3. Step 3: Cross multiply
    638,961,972x = 913,093,278 × 913,093,278
  4. Step 4: Simplify right side
    638,961,972x = 833,739,334,328,785,280
  5. Step 5: Solve for x
    x = 833,739,334,328,785,280/638,961,972
  6. Step 6: Final answer
    x = 1,304,834,044.69

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.